Eurypterid-Associated Biota of the Acacus Sandstone, Tadrart, Ghat Region, Libya (Silurian to of Libya)

Where: Libya (25.0° N, 10.2° E: paleocoordinates 77.5° S, 116.9° E)

• coordinate based on political unit

• local area-level geographic resolution

When: Acacus Sandstone Formation, Llandovery to Llandovery (443.4 - 427.4 Ma)

• "Later Llandoverian-Wenlockian? (Berry and Boucot 1973 [PBDB ref. 7455]).

• formation-level stratigraphic resolution

Environment/lithology: marine; sandstone and shale

• "BA 1-2, depending on whether the eurypterids are more closely associated with the abundant Arthrophycus or with the Cruziana"
• "Quartzitic sandstone, with thin shale interbeds."

Primary reference: R. E. Plotnick. 1999. Habitat of Llandoverian-Lochkovian eurypterids. In A. J. Boucot, J. D. Lawson (eds.), Paleocommunities - a case study from the Silurian and Lower Devonian 106-136 [M. Foote/M. Foote/P. Wagner]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 26987: authorized by Michael Foote, entered by Michael Foote on 11.11.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
unclassified
  -
Cubichnia sp., Paleophycus sp., Pelecypodichnus sp.
Euchelicerata
 Eurypterida - Carcinosomatidae
Carcinosoma sp.
Carcinosoma sp. Claypole 1890 eurypterid
 Eurypterida - Pterygotidae
Pterygotus sp.
Pterygotus sp. Agassiz 1839 eurypterid
Trilobita
  -
Trilobita indet.
Trilobita indet. Walch 1771 trilobite
unclassified
  -
Mollusca indet.
Mollusca indet. Linnaeus 1758
 Ichnofossils -
Cruziana sp., Dimorphichnus sp., Arthrophycus sp., Rusophycus sp.
Cruziana sp. d'Orbigny 1842
trace
Dimorphichnus sp. Seilacher 1955
trace
Arthrophycus sp. Hall 1852
trace
Rusophycus sp. Hall 1852
trace